... indefinitely.kineticenergy, very,very big down here.kineticenergy, verysmall up here. oh, it looks like the conservation of energy-- - what kind? - potential. potential, over here, very, very close. it's got a little small potential on over here. over here, very, very far, gotta big potential energy here. add these two up, you get a number, add these two up, you get a number. everybody in here know how this total number compared with this total number, right? 'ss' same, same. --ain't that neat? all along here, the total energy stays the same. yum? what happens when we hear that a russian satellite has crashed in australia or in canada, what really happens to the satellite? sometimes these satellites, they're falling all the time, by the way, but sometimes they fall and get closer. how come that happens? - air drag. - air drag. they drag their feet in the air. here's a satellite, i mean i say that not literally. here's satellite plowing through, okay? now it's way, way up there, maybe a couple of hundred miles high, no air drag. but maybe sometimes it's in kinda low orbit. up

environment, where they get that warmth?that'senergy, honey.andwhere'sthatenergycomefrom? it's got to come from something. it'll die--they'll digest themselves and lose weight, or they'll have to digest nutrients from the outside? so warm-blooded creatures are the ones that really have this problem. they can't-- they can't get too small without having to eat enormous amounts of food. the hummingbird. [whistles] honey, hummingbird really, really, got to keep fueled up all the time. it's so small. it's warm-blooded. the hummingbird got to get a lot of food. if you think--get the nectar very high energy, high sugar content, yeah? but the hummingbird, they got to go from station to station without running out, die quickly without the food. how about the elephants, gang? you be knowing why the elephants got big ears? what if you play a trick in the elephant and cut off its ears? what it's gonna do? it's gonna roast to death. right? elephants doesn't have very much, much surface area. and the elephants in the warm country, the elephants got to radiate off the energy, okay? how'

i am not teaching the class because i am expanding a lotofenergyonyou. there is not much we can do here. i would thank you to find a class that you would prefer to be and. i will speak to whomever. we will get you all settled. he said, i do not want to leave. i said, mr. cho, this is not call may, column b. i am saying you have to leave my class. can i help the goes and where else? he said, i do not have to do anything. i said, let me try this one more time. either you or i will not be in class next thursday. one of us will be gone. if i have to keep you in class, then i will resign, and that will solve that. if virginia tech has to make a choice between you and me, i daresay i think they will keep me, but we will have to see. and i meant it. hi went to my department head and i had been dealing with the fact that there was just something wrong here, but mostly it would disrupting my class. i have had students who had difficulties. i have taught a student that had threats. i have taught alcoholics. i have taught ex-soldiers. this was very different and why was not going to subjec

last 10 years there's been atremendousenergyputon breast-feeding and the health of the infant, and the desire of women to be connecting with their babies at a very primitive, very natural type of level and so feeding-- breast-feeding in that venue has actually become extremely popular. it's so easy now that almost anybody can breast-feed. the food that's produced by the mother is made specifically for her individual baby. although women can donate milk for other babies, her milk is designed specifically to meet the needs of that baby at that gestational age. and so as the baby is developing in the uterus and growing, it's being fed appropriately by the placenta and by the mother. the same thing holds true for the baby after it's delivered. in addition to that, as the baby grows over time, in the year, second year, third year, the milk changes to meet that particular baby's growing needs. the carbohydrate and protein balance is perfect. there's amino acids and carbohydrates that help fuel the baby's brain and continue to help them grow on a continuum that's set, and actually qu

applied to that structure, it was concluded thattheenergyexpendedwas about 30,000 person days. keach: that would be 300 people working for 100 days in the dry season -- the only time that they didn't have to farm. the homes of the laborers required 50 to 100 person days, perhaps a few people working for a month. by far, these were the most common type of household in copan. the disparity provided more evidence that a state had indeed evolved. king 18 rabbit built more than any other copan king, before or after him, according to william sanders. sanders: i think this would be the time when the power of the lineage heads was at its weakest and the power of the central authority was at it's highest, the power of the king was at its highest in copan's history. keach: but even then, royal power was limited, according to archaeologist and co-director of several copan excavations david webster. webster: i think power is the ability of leaders to coerce people into doing things they don't want to do. you get power like that generally in one of two ways -- by having some kind of force

. >> of the were you go there are mills where people used to work. developing ourownenergyresourcescould create hundreds of jobs on the south side. we have the skills, workers. all we need is a chance to work. the uranium mining is done safely around the world. if it can be done safely in virginia, i am for it. >> many virginia residents have expressed concern about the dangers uranium mining poses to drinking water, air quality, fishing, and tourism. they say allowing mining of one of the uranium deposit already identified open the door for exploration of other sites across the state. now almost all major cities have passed resolutions opposing lifting the ban. we are joined by the former director of the virginia department of the garments of quality robert burnley. he is now an environmental consultant. he is also an advisor to the alliance for progress in southern virginia. for viewers and listeners around the country and world, talk about the significance of what you're dealing with here in virginia. >> what is going on is an experiment. uranium has never been mined o

opportunities for our children to use uptheirenergy. boy:beep, beep. beep, beep. owww! hendrick: in some situations, noise can also be an excellent outlet for expressing aggression. yes, and sometimes there's nothing like a good bashing of the play-doh or hammering the ol' workbench to relieve stress, tension, and aggressive feelings in a child. girl: she is and you are. woman: are what? you're some scary monsters. some scary monsters? hendrick: my philosophy is that, like our children, we're human, too. but we're also role models, and intense anger can frighten children. that's why it's particularly important for us to recognize and control our flash points, especially on those dark days when it seems like your children know just where and when to push all your wrong buttons. woman: that kind of hurts my feelings when you call me a monster. that makes me sad. you're still a monster. i'm sorry that you feel that way. you're a monster. what kinds of things get under your skin when you're working with children? which one of your buttons do they push that can send you over the edge? wo

them a chance. everyone wants to look good, feel better, and havemoreenergy, andthat's where these guys come in--dark, leafy greens. nutritionists call them the superheroes of the vegetable world. they say they are packed with vitamins "a," "c," and "k," as well as iron, calcium, and fiber. and because of all of that nutritional appeal, what started out more as a comfort food has found acceptance amongst the masses as of late, yet few of us quite know what to do with them when we see them in the store--unless, of course, you're in ventura at the 71 palm restaurant. that's where you couldn't find a bigger fan of dark, leafy greens than chef poireir. >> ok. we got a baby bok choy. beautiful. nice and pretty. we got a bit of chard right now, the red and the green. just direct from the farm. et voila. >> it's like a whirlwind in the kitchen with this chef as he makes cooking with greens actually look easy. take, for example, this dish. he adds noodles and a little white wine reduction with some sweet pea greens, and then finishes with sesame seeds, and presto-- an easy and simple